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Manchester United to assess Diego Leon during pre-season before deciding his future
The 19-year-old Paraguayan left-back has yet to make his senior debut despite impressing at youth level, and the upcoming pre-season could determine whether he stays, loans out, or moves on entirely.
Diego Leon has been at Manchester United for roughly a year now. He’s played U21 matches, featured in pre-season friendlies, and even earned a senior international cap for Paraguay. What he hasn’t done is step onto the pitch for a competitive first-team match.
That timeline is about to face a verdict. The club will use the upcoming pre-season to evaluate whether the young left-back fits into their plans going forward, or whether his development would be better served elsewhere through a loan or permanent transfer.
A $4 million bet on potential
Leon arrived at Old Trafford on July 5, 2025, signed from Paraguayan club Cerro Porteno for a reported $4 million fixed fee with an additional $1 million in performance-related add-ons. Born on April 3, 2007, he was just 18 at the time, a teenager plucked from South American football and dropped into one of the most scrutinized clubs on the planet.
Leon’s early impressions were encouraging. He featured in Manchester United’s first pre-season friendly against Leeds in Stockholm during the summer of 2025, showing the kind of athleticism and attacking instinct from the left flank that had attracted scouts in the first place. Under Ruben Amorim’s management, those initial displays generated genuine optimism about his trajectory.
Rather than being fast-tracked into the senior squad, Leon spent the bulk of the 2025/26 season with the U21s.
International recognition, but no club debut
On October 14, 2025, he earned his first senior cap for Paraguay in a match against South Korea. Yet at club level, that breakthrough hasn’t materialized. As of late May 2026, Leon holds squad number 35 at Manchester United and has zero first-team appearances to his name.
Leon demonstrated scoring ability during his time with the U21 squad, suggesting his contributions extend beyond defensive duties.
What the pre-season evaluation means
The club essentially has three options. Keep Leon in the squad and integrate him into first-team plans for the 2026/27 season. Send him on loan to a club where he can accumulate regular competitive minutes at a meaningful level. Or, if neither of those paths makes sense, explore a permanent transfer that recovers some of their investment while giving Leon a better platform for his career.